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Multi-user equipment approved in grant 2013/18719-1: time resolved measurement system

Grant number: 14/07375-2
Support type:Multi-user Equipment Program
Duration: June 01, 2014 - May 31, 2016
Field of knowledge:Physical Sciences and Mathematics - Physics - Condensed Matter Physics
Principal researcher:Marcio Daldin Teodoro
Grantee:Marcio Daldin Teodoro
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated research grant:13/18719-1 - Electronic carriers dynamics in semiconductor nanostructures, AP.JP
As informações de acesso ao Equipamento Multiusuário são de responsabilidade do Pesquisador responsável
EMU web page: Página do Equipamento Multiusuário não informada
Type of equipment:Caracterização de Materiais - Espectroscopia - Fluorescência (inclui resolvida no tempo)
Manufacturer: Fabricante não informado
Model: Modelo não informado

Abstract

The time correlated single photon couting (TCSPC) technique is the most sensitive method for determining photoluminescence/fluorescence lifetimes. TCSPC is based on the detection of single photons after optical excitation of a sample by a pulsed source. The light from the source starts the electronics, which is stopped after the photons from the samples reaches the detector. The time difference between these two signal is analyzed in a histogram, and the lifetime from the electronic carriers decay can be directly determined. This project aims to setup a TCSPC system with a 100 ps resolution. The technique will be composed by a pulsed laser, a spectrometer, an infrared photomultiplier detector, a timing electronics and dedicated software. The whole system will be aligned in a such way that photoluminescence/fluorescence measurements as a function of the temperature (10K - 300K) or magnetic field can be done easily without any special efforts. Due to the flexibility of the system, high resolution in time, high sensitive photons detection (one photon at a time) and easily configurable, other detectors and lasers sensitive in different spectral regions can be integrate. Therefore, this TCSPC technique will be a very powerful and unique tool for the whole scientific community working on optical properties of materials. (AU)

Articles published in Agência FAPESP Newsletter about the research grant:
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Scientific publications (8)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CASTRO, E. D. GUARIN; PFENNING, A.; HARTMANN, F.; KNEBL, G.; TEODORO, M. DALDIN; MARQUES, G. E.; HOEFLING, S.; BASTARD, G.; LOPEZ-RICHARD, V. Optical Mapping of Nonequilibrium Charge Carriers. Journal of Physical Chemistry C, v. 125, n. 27, p. 14741-14750, . (18/01914-0, 14/07375-2, 14/19142-2, 14/02112-3)
LAURINDO JR, V; MAZUR, I, YU; DE OLIVEIRA, E. R. CARDOZO; ALEN, B.; WARE, M. E.; MAREGA JR, E.; ZHUCHENKO, Z. YA; TARASOV, G. G.; MARQUES, G. E.; TEODORO, M. D.; et al. Magnetically controlled exciton transfer in hybrid quantum-dot-quantum-well nanostructures. Physical Review B, v. 100, n. 3, . (13/18719-1, 14/07375-2, 14/19142-2, 18/01914-0)
MONTERO-MUNOZ, M.; RAMOS-IBARRA, J. E.; RODRIGUEZ-PAEZ, J. E.; MARQUES, G. E.; TEODORO, M. D.; COAQUIRA, J. A. H.. Growth and formation mechanism of shape-selective preparation of ZnO structures: correlation of structural, vibrational and optical properties. Physical Chemistry Chemical Physics, v. 22, n. 14, p. 7329-7339, . (14/07375-2, 14/19142-2, 15/13771-0, 13/18719-1)
CAMILO ALBORNOZ DIAZ, JULIO CESAR; VENET, MICHEL; CORDERO, FRANCESCO; DA SILVA, JR., PAULO SERGIO. Anelastic and optical properties of Bi0.5Na0.5TiO3 and (Bi0.5Na0.5)(0.94)Ba0.06TiO3 lead-free ceramic systems doped with donor Sm3+. Journal of Alloys and Compounds, v. 746, p. 648-652, . (12/08457-7, 14/07375-2, 13/00134-7)
MAZUR, YU. I.; LOPES-OLIVEIRA, V.; DE SOUZA, L. D.; LOPEZ-RICHARD, V.; TEODORO, M. D.; DOROGAN, V. G.; BENAMARA, M.; WU, J.; TARASOV, G. G.; MAREGA, JR., E.; et al. Carrier transfer in vertically stacked quantum ring-quantum dot chains. Journal of Applied Physics, v. 117, n. 15, . (12/02655-1, 14/07375-2, 13/18719-1)
MONTERO-MUNOZ, MARLY; RAMOS-IBARRA, J. E.; RODRIGUEZ-PAEZ, JORGE E.; TEODORO, MARCIO D.; MARQUES, GILMAR E.; SANABRIA, ALFONSO R.; CAJAS, PAOLA C.; PAEZ, CARLOS A.; HEINRICHS, BENOIT; COAQUIRA, JOSE A. H.. Role of defects on the enhancement of the photocatalytic response of ZnO nanostructures. Applied Surface Science, v. 448, p. 646-654, . (14/07375-2, 14/19142-2, 15/13771-0, 13/18719-1)
KAMIMURA, H.; GOUVEIA, R. C.; CARROCINE, S. C.; SOUZA, L. D.; RODRIGUES, A. D.; TEODORO, M. D.; MARQUES, G. E.; LEITE, E. R.; CHIQUITO, A. J.. Optical and transport properties correlation driven by amorphous/crystalline disorder in InP nanowires. JOURNAL OF PHYSICS-CONDENSED MATTER, v. 28, n. 47, . (13/18719-1, 14/07375-2, 12/06916-4)
CARDOZO DE OLIVEIRA, E. R.; PFENNING, A.; GUARIN CASTRO, E. D.; TEODORO, M. D.; DOS SANTOS, E. C.; LOPEZ-RICHARD, V.; MARQUES, G. E.; WORSCHECH, L.; HARTMANN, F.; HOEFLING, S.. Electroluminescence on-off ratio control of n-i-n GaAs/AlGaAs-based resonant tunneling structures. Physical Review B, v. 98, n. 7, . (13/18719-1, 16/50080-9, 14/19142-2, 14/02112-3, 14/07375-2)

Please report errors in scientific publications list by writing to: cdi@fapesp.br.